Home / 78,696.18-118,043.34-47,115.06

Finding the Fourth Proportional to 78,696.18, 118,043.34 and 47,115.06

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Solution

The fourth proportional to 78,696.18, 118,043.34 and 47,115.06 is: 70,672.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,696.18 : 118,043.34 = 47,115.06 : x
  2. Step 2: Convert to fraction form
    78,696.18/118,043.34 = 47,115.06/x
  3. Step 3: Cross multiply
    78,696.18x = 118,043.34 × 47,115.06
  4. Step 4: Simplify right side
    78,696.18x = 5,561,619,046.70
  5. Step 5: Solve for x
    x = 5,561,619,046.70/78,696.18
  6. Step 6: Final answer
    x = 70,672.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.